VtkCompositeImageToCylindersFilter Class Reference

Detailed Description

Creates cylinders that stand on top of the image with the length of the corresponding first sub-pixel value (the red value). Useful to visualize precipitation maps as a 3d bar chart.

Definition at line 13 of file VtkCompositeImageToCylindersFilter.h.

#include <VtkCompositeImageToCylindersFilter.h>

Inheritance diagram for VtkCompositeImageToCylindersFilter:

Collaboration diagram for VtkCompositeImageToCylindersFilter:

Public Member Functions
	VtkCompositeImageToCylindersFilter (vtkAlgorithm *inputAlgorithm)
	~VtkCompositeImageToCylindersFilter () override
void	init () override
void	SetUserProperty (QString name, QVariant value) override
	Sets a user property. This should be implemented by subclasses.
void	SetUserVectorProperty (QString name, QList< QVariant > values) override
	Sets a vector user property. This should be implemented by subclasses.
Public Member Functions inherited from VtkCompositeFilter
	VtkCompositeFilter (vtkAlgorithm *inputAlgorithm)
	Constructor.
	~VtkCompositeFilter () override
	Destructor.
int	GetInputDataObjectType () const
int	GetOutputDataObjectType () const
vtkAlgorithm *	GetOutputAlgorithm () const
Public Member Functions inherited from VtkAlgorithmProperties
	VtkAlgorithmProperties (QObject *parent=nullptr)
	Constructor (sets default values)
	~VtkAlgorithmProperties () override
vtkProperty *	GetProperties () const
	Returns the vtk properties.
vtkTexture *	GetTexture ()
	Returns a texture (if one has been assigned).
void	SetTexture (vtkTexture *t)
	Sets a texture for the VtkVisPipelineItem.
vtkLookupTable *	GetLookupTable (const QString &array_name)
	Returns the colour lookup table (if one has been assigned).
void	RemoveLookupTable (const QString &array_name)
	Removes the lookup table for the given scalar.
void	SetLookUpTable (const QString &array_name, vtkLookupTable *lut)
	Sets a colour lookup table for the given scalar array of the VtkVisPipelineItem.
void	SetLookUpTable (const QString &array_name, const QString &filename)
	Loads a predefined color lookup table from a file for the specified scalar array.
bool	GetScalarVisibility () const
	Returns the scalar visibility.
void	SetScalarVisibility (bool on)
	Sets the scalar visibility.
QString	GetName () const
	Returns the name. This is set to the file path if it is a source algorithm.
void	SetName (QString name)
	Sets the name.
bool	IsRemovable () const
	Is this algorithm removable from the pipeline (view).
QMap< QString, QVariant > *	GetAlgorithmUserProperties () const
	Returns a map of user properties.
QMap< QString, QList< QVariant > > *	GetAlgorithmUserVectorProperties () const
	Returns a map of vector user properties.
QVariant	GetUserProperty (QString name) const
	Returns the value of a user property.
QList< QVariant >	GetUserVectorProperty (QString name) const
	Returns a list of values of a vector user property.
void	SetActiveAttribute (QString name)
	Set the active attribute.
QString	GetActiveAttribute () const
	Returns the desired active attribute.

Private Attributes
VtkImageDataToLinePolyDataFilter *	_lineFilter

Additional Inherited Members
Signals inherited from VtkAlgorithmProperties
void	ScalarVisibilityChanged (bool on)
Protected Member Functions inherited from VtkCompositeFilter
double	GetInitialRadius () const
	Calculates a 1/200th of the largest extension of the bounding box (this is used as default radius for various filters)
Protected Attributes inherited from VtkCompositeFilter
int	_inputDataObjectType
int	_outputDataObjectType
vtkAlgorithm *	_inputAlgorithm
vtkAlgorithm *	_outputAlgorithm
Protected Attributes inherited from VtkAlgorithmProperties
vtkProperty *	_property
vtkTexture *	_texture
bool	_scalarVisibility
std::map< QString, vtkLookupTable * >	_lut
QString	_name
QString	_activeAttributeName
bool	_removable
QMap< QString, QVariant > *	_algorithmUserProperties
QMap< QString, QList< QVariant > > *	_algorithmUserVectorProperties

Constructor & Destructor Documentation

VtkCompositeImageToCylindersFilter()

VtkCompositeImageToCylindersFilter::VtkCompositeImageToCylindersFilter ( vtkAlgorithm * inputAlgorithm )

explicit

Definition at line 20 of file VtkCompositeImageToCylindersFilter.cpp.

    : VtkCompositeFilter(inputAlgorithm), _lineFilter(nullptr)
{
    this->init();
}

References VtkCompositeFilter::VtkCompositeFilter(), _lineFilter, and init().

~VtkCompositeImageToCylindersFilter()

VtkCompositeImageToCylindersFilter::~VtkCompositeImageToCylindersFilter ( )

override

Definition at line 133 of file VtkCompositeImageToCylindersFilter.cpp.

{
    _lineFilter->Delete();
}

References _lineFilter.

Member Function Documentation

init()

void VtkCompositeImageToCylindersFilter::init ( )

overridevirtual

Implements VtkCompositeFilter.

Definition at line 27 of file VtkCompositeImageToCylindersFilter.cpp.

{
    this->_inputDataObjectType = VTK_IMAGE_DATA;
    this->_outputDataObjectType = VTK_POLY_DATA;
 
    _lineFilter = VtkImageDataToLinePolyDataFilter::New();
    _lineFilter->SetInputConnection(_inputAlgorithm->GetOutputPort());
    _lineFilter->SetLengthScaleFactor(1);
    (*_algorithmUserProperties)["LengthScaleFactor"] = 1.0;
    _lineFilter->Update();
 
    double range[2];
    // The data is always on points
    vtkDataSet::SafeDownCast(_lineFilter->GetOutputDataObject(0))
        ->GetPointData()
        ->GetScalars()
        ->GetRange(range);
 
    vtkLookupTable* colormap = vtkLookupTable::New();
    colormap->SetTableRange(range[0], range[1]);
    colormap->SetHueRange(0.0, 0.666);
    colormap->SetNumberOfTableValues(256);
    colormap->ForceBuild();
    QList<QVariant> tableRangeList;
    tableRangeList.push_back(range[0]);
    tableRangeList.push_back(range[1]);
    QList<QVariant> hueRangeList;
    hueRangeList.push_back(0.0);
    hueRangeList.push_back(0.666);
    (*_algorithmUserVectorProperties)["TableRange"] = tableRangeList;
    (*_algorithmUserVectorProperties)["HueRange"] = hueRangeList;
 
    this->SetLookUpTable("P-Colors", colormap);
 
    vtkTubeFilter* tubeFilter = vtkTubeFilter::New();
    tubeFilter->SetInputConnection(_lineFilter->GetOutputPort());
    tubeFilter->CappingOn();
    tubeFilter->SetNumberOfSides(6);
    tubeFilter->SetRadius(_lineFilter->GetImageSpacing() * 0.25);
    (*_algorithmUserProperties)["NumberOfColors"] = 256;
    (*_algorithmUserProperties)["Capping"] = true;
    (*_algorithmUserProperties)["NumberOfSides"] = 6;
    (*_algorithmUserProperties)["RadiusFactor"] = 0.25;
 
    _outputAlgorithm = tubeFilter;
}

References VtkCompositeFilter::_inputAlgorithm, VtkCompositeFilter::_inputDataObjectType, _lineFilter, VtkCompositeFilter::_outputAlgorithm, VtkCompositeFilter::_outputDataObjectType, VtkImageDataToLinePolyDataFilter::New(), and VtkAlgorithmProperties::SetLookUpTable().

Referenced by VtkCompositeImageToCylindersFilter().

SetUserProperty()

void VtkCompositeImageToCylindersFilter::SetUserProperty ( QString name, QVariant value )

overridevirtual

Sets a user property. This should be implemented by subclasses.

Reimplemented from VtkAlgorithmProperties.

Definition at line 74 of file VtkCompositeImageToCylindersFilter.cpp.

{
    VtkAlgorithmProperties::SetUserProperty(name, value);
 
    _lineFilter->SetUserProperty(name, value);
 
    // VtkImageDataToLinePolyDataFilter is equal to _firstAlgorithm
    // vtkTubeFilter is equal _outputAlgorithm
    if (name.compare("NumberOfColors") == 0)
    {
        vtkLookupTable* lut = this->GetLookupTable("P-Colors");
        if (lut)
        {
            lut->SetNumberOfTableValues(value.toInt());
        }
    }
    else if (name.compare("NumberOfSides") == 0)
    {
        static_cast<vtkTubeFilter*>(_outputAlgorithm)
            ->SetNumberOfSides(value.toInt());
    }
    else if (name.compare("Capping") == 0)
    {
        static_cast<vtkTubeFilter*>(_outputAlgorithm)
            ->SetCapping(value.toBool());
    }
    else if (name.compare("RadiusFactor") == 0)
    {
        static_cast<vtkTubeFilter*>(_outputAlgorithm)
            ->SetRadius(_lineFilter->GetImageSpacing() * value.toDouble());
    }
}

References _lineFilter, VtkCompositeFilter::_outputAlgorithm, VtkAlgorithmProperties::GetLookupTable(), and VtkAlgorithmProperties::SetUserProperty().

SetUserVectorProperty()

void VtkCompositeImageToCylindersFilter::SetUserVectorProperty ( QString name, QList< QVariant > values )

overridevirtual

Sets a vector user property. This should be implemented by subclasses.

Reimplemented from VtkAlgorithmProperties.

Definition at line 108 of file VtkCompositeImageToCylindersFilter.cpp.

{
    VtkAlgorithmProperties::SetUserVectorProperty(name, values);
 
    _lineFilter->SetUserVectorProperty(name, values);
 
    if (name.compare("TableRange") == 0)
    {
        vtkLookupTable* lut = this->GetLookupTable("P-Colors");
        if (lut)
        {
            lut->SetTableRange(values[0].toDouble(), values[1].toDouble());
        }
    }
    else if (name.compare("HueRange") == 0)
    {
        vtkLookupTable* lut = this->GetLookupTable("P-Colors");
        if (lut)
        {
            lut->SetHueRange(values[0].toDouble(), values[1].toDouble());
        }
    }
}

References _lineFilter, VtkAlgorithmProperties::GetLookupTable(), and VtkAlgorithmProperties::SetUserVectorProperty().

Member Data Documentation

_lineFilter

VtkImageDataToLinePolyDataFilter* VtkCompositeImageToCylindersFilter::_lineFilter

private

Definition at line 26 of file VtkCompositeImageToCylindersFilter.h.

Referenced by VtkCompositeImageToCylindersFilter(), ~VtkCompositeImageToCylindersFilter(), init(), SetUserProperty(), and SetUserVectorProperty().

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The documentation for this class was generated from the following files:

• VtkCompositeImageToCylindersFilter.h
• VtkCompositeImageToCylindersFilter.cpp